Tractor driving-gear.



A. ORTENGREN. TRACTOR DRIVING GEAR.

APPLICATION FILED JUNE 2.19I

Patented Nov. 7, 1916.

4 SHEETS-SHEET I INVEMQR A TTUHNEY A. ORTENGREN.

TRACTOR DRIVING GEAR.

APPLICATION FILED JUNE 2. |914.

l 203,647. Patented Nov. 7, 1916.

4 SHEETS-SHEET 2.

III

Inn r y WITNESS/58 f A TTOHIVEY A. ORTENGREN.

TRACTOR DRIVING GEAR. APPLICATION FILED IuNE 2. I9I4 A TTU/MIEI M M w WW,

Patented Nov. 7, 1916.

4 SHEETS-SHEET 3 A. ORTENGREN'.

TRACTOR DRIVING GEAR.

APPLICATION HLED JUNE 2.1914.

1 ,20S-,647. Patented Nov. 7, 1916.` l

4 SHEETS-SHEET 4.

' I 4 I j I c/Mmm?? A TTORNEY ALFRED ORTENGBEN, OF BROOKLYN, NEW YORK, ASSIGNQR TO ELIZABETH CHRISTIE, OF WEEHAWKEN, N EW JERSEY.

TRACTOR DRIVING-GEAR.

Specification of Letters Patent.

Patented Nov.. 7, 1916.

Continuation in part of application Serial No. 1705,228, filed` June 22, 1912. This application led June?. 1914. Serial No. 842,455.

To oZZ whom 'it may concern:

Be it known that l, ALFRED URTENGREN, a citizen of the United States of America, and a resident of Brooklyn, Kings county, and State of New York, have invented certain new and useful Improvements in llracr tor Driving-Gears, of which the tollowing is 'a specification, reference being had to the accompanying drawings, forming` a part thereof.

My invention relates to motor vehicles and particularly to driving connections for the steered wheels of tractors.

One object of my invention is to provide a relatively simple'and particularly desirable driving connection of the character above indicated, that shall be arranged to permit the ready removal of the driving wheel and the taking apart of the connection for inspection and repairs.

' Other objects and advantages of my in vention will be set forth hereinafter, and in order that my invention may be thoroughly understood, l will'now proceed to describe the same in the following specification, and then point out the novel features thereof in appended claims.

Referring to the drawingsz- Figure 1 is an elevation of an axle and wheels, for a motor vehicle, embodying the driving connection of my invention. A plan view of the same with one wheel partially in section is shown in Fig. 2. Fig. 3 is a partially sectional elevation corresponding to Fig. 1 but drawn to a larger scale and arranged to disclose in detail the differential end of my improved driving connection. A` sec tional view on the line 4-4 of Fig. 3, disclosing one wheel in elevation isshown in Fig. 4.' Fig.` 5 is a section taken on the line 5-'-5 of Fig. 3. ,Fig 6 is a transverse sectional elevation through the center of the axle showing the wheel end of my improved driving connection in detail, the parts of the wheel structure being separated to illustrate the manner in which the con nection is disassembled and the wheels removed.

rilhe structure illustrated comprises in general, an axle 10,I wheels 15, wheel driving gears, a differential driving mechanism carried by the aXle between the wheels, a driving chain 62 transmitting power to the differential driving mechanism, a pair of removable shafts 42, and a universal ljoint interposed between the differential mechanism and the driving gear for each wheel. The axle 10 has a vertical sleeve 11 at each end, to which is pivotally Connected, by a knuckle pin 12, anV inner member 16 of one of the Wheels 15. 'ln addition to the inner member 16 each of the wheels comprises an annular outer member 17 which constitutes a support for the rim of the wheel.

18 is a steel band or rim surrounding the outer' cylindrical surface of the member 17. A tire 19 is mounted on the band 1S and is held in position by a pair of flanges 20 which are hook-shaped in cross-section land are clamped to the member 17 by lbolts 21. Another annular member 22, which has an integral spur gear 23 and a flange 24, is secured to the member 17 by bolts 25. The teeth of the gear are internally cut and are arranged to. mesh as explained below, with the teeth of the pinion 30.

The inner wheel member 16 has an annular flange 31 anda relatively small eccentric sleeve or cylindrical projection 32. The flange 31 is arranged to tit into a ring 33 and is rotatively mountedwithin the outer member 17 as clearly shown in Fig. 6, a frictionless bea-ring 34 being 'interposed between the ring 33 and an annular ledge 17A of the outer member.

Within the eccentric cylindrical projection 32 of the inner member is rotatively supported by frictionless bearings 35, the pinion 30 which has a hub 36. The outer end of the cylindrical projection 32 is closed by a cap 37.

Keyed Within the hub 36 of the pinion is a plug 38 having a forked end to engage an annular groove 39 in a sphere 40. This sphere forms a part of a universal joint and is provided with a pair of'opposite transverse slots 41 which are at right angles to the plane of the annular` groove 39 'and which are engaged bythe forked end of one of the driving shafts 42. The opposite ends of the driving shafts are removably Connected to the differential driving mech anism. This mechanism comprises a pair of spaced brackets 50 having cylindrical pockets 5l into which the respective ends of a differential casing 53 extend. rThe ends 52 are in the form of cylindrical sleeves which are in alinement with each other, the central portion of the differential casing being enlarged to form a boX in which differential gears 54 and 55 are located. The maingears 54 are opposite each other and are .rotatively mounted in the sleeves 52. These gears are ,interconnected by a plurality of beveled pinions 55 which are supported in uniformly spaced radial bearing sleeves 56 in the differential casing. Frictionless bearings 57 are interposed between the sleeve projections 52 of the casing and the cylindrical pockets 5l of the brackets. Secured to the casing by bolts 60 is a sprocket wheel 6l with which meshes the driving chain 62.

A brake wheel is bolted to the casing 53 and has-a cylindrical outer surface 66 with.x which a: brake band 67 coperates. The brackets 50 have extensions 68 interconnected by a rod 69 upon which brake actuating toggle links 70 are supported.

The hubs 54A of the gears 54 are provided with square holes or openings of other suitable shape into which the correspondingly shaped ends of the shafts 42 freely extend to form an operative connection therewith.

rlhe 'opening in the eccentric sleeve 32 of the inner wheel member 16 is relatively large to permit the kpinion 30 to be withdrawn outwardly when the cap 3 7 is removed. lThe removed pinion, together with the frictionless bearings is shown at the right-hand end of Fig. 6. The forked plug 38 may then be freely removed since it is in no way attached to the other parts of the universal joint. rlhe sphere 40 is then entirely free and may be removed through the same opening. In fact the shaft 42 is also free inasmuch as its inner end is operatively connected to one of the gears 54 by merely being inserted in a suitable opening in the gearhub. The advantages of this arrangement are apparent to anyone skilled in the art, for'example, it is particularly desirable to be able to take apart the driving mechanism in the manner above indicated for cleaning, inspection, and repairs when the tractor is used in connection with fire-fighting apparatus where it is essential to keep the device in working order at all times. The arrangement shown enables any part to be very quickly removed and replaced by a recaen? out disturbing the drivinggearsat all, exc cept to remove the bolts 25 by which the gear 22 is attached to the outer member.

This application is a continuation in part, of my copending application Serial No. 705,228, filed June 22, 1912, which discloses the wheel and a portion of the driving connection.

1What l claim is:

l. A wheel having an outer relatively rotatable member, an inner member adapted to be pivotally secured to one end of an axle and having a removable annular member on which the rotatable member is mounted.

2. A wheel having an outer relatively rotatable member, a flanged internal gear removably secured thereto, an inner member adapted to be pivotally secured to one end of an axle and having a removable ring on which the rotatable member is mounted. 3. A wheel having an outer relatively rotatable member, a flanged internal gear removably secured thereto, an inner member adapted to be pivot'ally secured to one end of an axle and having a removable ring on which the rotatable member is mounted, and interposed frictionlcss bearings between the outer and inner members, said internal gear being arranged to extend freely into the removable ring of the inner member.

4. A wheel having an outer relatively rotatable member, a removable internal gear secured to the outer member, an inner member having an annular ange adapted to fit loosely over the internal gear of the rotatable member, a removable ring surrounding the annular flange on the inner member, and frictionless bearings between said ring and the outer member.

5. A wheel having an outer relatively rotatable member, a removable internal gear 'secured to the outer member, an inner member havingy an annular flange adapted to ft loosely over the internal gear of the rotatable member, a removable ring surrounding `the annular flange on the 4inner member, frictionless bearings between said ring and the outer member, an eccentric sleeve forming a part of the inner member, a pinion rotatively and removably mounted therein and adapted to mesh with the said internal gear.

6. A wheel having an outer relatively rotatable membena removable internal gear secured to the outer member, an inner member having an annular ange adapted to fit loosely over theA internal gear of the rotatable member, a removable ring surrounding the annular flange on the inner member, frictionless bearings between said ring and the outer member, an eccentric sleeve forming a part of the inner member, a pinion rotatively andremovably mounted therein and adapted to mesh with the internal gear,

'ized ping smwaby mmmze Wghm my hand in he pmssnc@ 01"? two subscribing Ai'l'n and arranged to oae therewifm Witnesses, this 125th day of February, i914.v

' ?Lfke ALFRED @ETENGMN imeqwsefi nacween ma allied ag and to form a Witnese: l

l W'. BEY-F3n ERNEST `W- MARSHALL.

in Wl'ness whereof, i hav- 5 hemmto set 

